Alkali, Oxide, Transitional, Orthorhombic, Structural transitions

• Na-Nb-O
• Na-O-V
• K-Na-Nb-O
• K-Nb-O
• Co-Na-O
• temperature for structural transition
• pressure for structural transition
• pressure derivative of transition temperature
• structural transition
• oxide
• transitional
• alkali
• chalcogen
• ferroelectric